Incubator.



R. PGKUY. INcuAToR.

APFLICATlON FILED NOV. I, 15H6. Patented Dec. 3, y Y 3 SHEETS-SHEET l.

Ir-1.5-14- Z- Blaakoy,

RI INCUBATOH.

APPucATlon msu nov.1. me.

l Patented Deo. 3,1918.

.56' R pc2/day,

H. POKOY.

mcumon. APPLICATION FILED NOVJ. |916. Patented Dec. 3,1918.

3 SHEETS-SHEET 3.

ml' 6MM r L@ entren'w sra RUDQLPrI-I- POKOY, OIF MARBURY, ALABAMA. 4

AN' GUEBATOR.

Y To vall whom t may concern;

yBe it known that I, RUnoLPH Ppio, a subject ofv4 the 'EmperorjofAustria-Hungary; resi-ding et-Marbur'y, in. the @Guilty 0f Autallga andlState of Alabama, have invented certain newand useful Improve- "ments inIncubators; and I do hereby dey ,Clare thefollowing to be a full, clear,and eX- actfdescription of the inventionsy SLlClfl as will enable othersskilled in the art to which it appertainsto 'make and use the same.

rfhis invention relatesto incubators and anobject ofthe invention is-toincorporate` therein certain constructions that will increase theefiiciency'of the incubator, and will admit yof the proper temperaturebeing.

maintainedv when theincubator is in opera- Y l tion. f

Another object ofthe invention isthe prol vision of anA incubatorwherein .the differentr parts constituting they incubator will be soarranged that they caribe conveniently re- ;,nioved andreplacedby newparts wheny desired. l ,y

@ther objectswill appear and be better understood from that@BibOxilirnentv of my 'invention of which the following is aspecification, reference being had tok the ,ac-coinpa'iiying drawingsforming a part thereof,

in which:

Figure l isa vertical front elevation of the incubator` with theI front'and upper vwalls swung to open position,

Fig.; 2 is a vertical sectional view, taken on the line 2-2of Fig. 1",

' Fig..,3 is a vertical front sectional View of Y the incubator, showingthe interior thereof,

Fig. 4 is a verticali'sectional view, taken through vthe filling spoutof one of the heating tanks, o i

.Figa 5 isa detaily view through the auX- iliary air inlet,

Fig. 6 is a detail sectional View, taken through the regulating meansfor the damper operatingjmechanism,

Fig. 7 is a detail view, showing' the air inlet controlling damper forthe lower heating compartment,

' Fig. 8 is atop plan view ofthe regulating means for the damperoperating mechanism,

Fig. 9, 1s a verticalelevationof a .ther- ;mometer and theisupporttherefor for deterjinining the dcgreeofltemperature within theintermediate or egg compartment, the said' f-Specic'ationrof LettersPatent.

Patented Dec. 3, 1918.

Application 4filed November 7,k 1916. Serial N o. 129,966.

thermometer orl support being shown removed from the incubator, and f tFig. 10 is a detail perspective view of the forward end of the movableelement which operates the dampers. v

Referring to the drawings in detail,fthe incubator is shown asconsisting of a casing having formed therein an upper compartment 2, anintermediate compartment, and

a lower compartment 4. The walls of the incubator are formed in theusual or any appropriate manner. The front of the incubator is closed byan inner and outer wall, i

the inner wall having formed therein an upper door 5,'which opens intothe upper end of the intermediate compartment 3, an intermediate door 6,which also opens into the intermediate compartment 3, and a lower door7which 1closes the forward side of the lower compartment 4. `These doors5, 6, and` 7 are hinged, respectively, to strips 8 and 9. The outer wallconsists of a door 10, which has hinge connection to one of the sidewalls of the casing, and the-door 6 in the inner wall is provided withan opening 11 which receives asuitable lens, the said opening y11 beingadapted to register with a similar opening 12 formed in the doorlO, whenthe latter is in closed'position, and within which is mounted anotherlens. The openings 11 and 12, and the lensesmounted therein, serve toprovide a windowby which the interior of the intermediate compartment 3can be inspected. The upper wall 10 is hingedly secured in position andforms means whereby access may be readily had tothe upper portion of theincubator. The opposite side i walls of the intermediate compartment areprovided with opposed ledges 13 which form rests for an egg tray,designated` 14, in Fig. 2 of the drawings. The upper wall of theintermediate compartment 3 is provided with a pair of-spaced openingsl5, and the lower wall of the intermediate compartment is also providedwith a pair. of spaced openings 16. VThe uppercompartment 2. and thelower compartment 4 constitute the heating compartments ofthe incubatorand by virtue of the openings l5 and 16V formed in the upper and lowerwalls of the intermediate compartments the heatcan pass fromthe upperand lower compartments 2 and 4 into the interi'nediatey or eggcompartment 3. Each of the compartments 2 and 4 has and lowercompartments.

partment, designated 19, is adapted to re-.

ceive hot water, and the upper compartment receives a heating element20, formed, preferably, of soapstone, or other material which Y willreadily absorb heat, and .heat the water in the lower compartment 19.The comparta ment 18 is provided, at a medial point, with an openingwhich receives one end of a fill-` ing spout 21. This filling spout 21,as shown in F ig. 4 of the drawings, consists of a tubular body havingyits upper end closed by a.

removable disk 22, which has a central opening-therein, and mountedwithin the spout,

andmovable therein, is a Adisk 23, having an opening 24 therein, whichis disposed indirect alinement with the opening in the disk v22. A coilspring 25is interposed between the disk V22 and the `disk 23 and servesto hold the disk 23 spaced below the disk 22. An annularianged member 26is threadedlv mounted within the filling spout 21 and engages the lowerside of the disk 23, and has its lower side provided with a plurality ofopenings 27. rIhe disks 22 and 23, andthe element provide a whistle thatwill be opere` ated to'give a sound when the water within the tank171becoines heated to the degree where steam 'will be generated, thevsteam generated passing through the openings in the disks 22 and `23and the flanged element 26,'and producing a sound. A flanged cap 28engages over the disk 22 and has threaded engagement with the upper 'endof the spout 21, and serves to retain'the disk 22 in operative position,the upper side of the cap having an opening 29 therein for the escape ofthe steam. A pair of handles 31 are pivotally connected to the sides ofthe heater, as at 30, and the handles form means for the easy removal ofthe heater. I he lower 'conipartment 4 has one 'of the end walls thereofprovided with an air inlet opening 32, and a manually operated damper 33is adapted to regulate the passage of air through the opening 32 intothe lower compartment 4.

A pair of rectangular shaped dampers 34 underlie the upper wall of theintermediate compartment 3 and arey adapted, when the heat within theintermediate compartment 3 exceeds a predetermined degree to moveupwardly andvclose theopenings 15, so as to cut oi' communicationbetweenthel upper or heating compartment 2 and the intermediate compartment 3.These 7dampers 34 have their forward ends connected by a bar 35, whichis of kangularshape in cross section, and the rearpends of the dampers34 have openings therein'for the reception of the bills of hooks 36,which are secured to the rear wall of the intermediate compartment 3.v Abracket 37'is located within the intermediate compartment 3, and is ofangular shape and has one legthereof secured to the rear wall of theintermediate compartment another thermostat 41 composed of a single ywafer. An expansion bar 42, of arcuate shape, has its opposite endsoverlying and resting on the respective thermostats 40 andV i 41, andwhen the' thermostat expands, thel rod 42 will be raised upwardly'. Therod 42 is received between pairs of spaced studs 43, which projectvertically from the bracket 38. A wedge shaped element 44'rests upon theupper side ofthe rod 42 and is provided with a longitudinally extendingchannel 45,y

the lowervwalll Aof which is inclined toward the restricted end of theelement 44. An elongated horizontally disposed and .verticallymovableelement 46 isdisposed above the element 44 and has its opposite sidesprovided with upwardly extending elon-rv gated flanges 47, which areprovided' adjacent their rear ends with opposed openings through whichpasses a transverse shaft 48,`

`the opposite ends ofthe shaft 48 extending beyond the outer sides oftheiiangcs 47 and Journaled in the sides of the inverted Uf shaped frame49, which is secured to the y under side of the upper wall ofthekintermediate compartment 3. A verticalpin 50 has-its upper endextended through an opening in the movable element`46 at a pointinadvance of the shaft 48, and a pin 51 vextends through an opening in theupperend of the pin 50 and is journaledin the flanges 47. The lower endof the pin 50`extends into the channel y45 formed `in the element 44,and is provided with a head, which pre-vl Vents the lower end of the pin50 from being raised vertically out of the channel 45 by engagingopposed inwardly directedanges formed on the upper walls of the channel45, as shown more particularly in Fig. 2 of the drawings. Located withinthe intermediate compartment 3 anddisposed in rear of thel bracket 38vis avertical rod 51a,*which'has the upper end thereof bent to provide alloopvwhich is extended through an opening vllfl Elfi in the rear end ofthe plate 46. The rod 51a is slidably received by an opening formed inthehorizontal arm of the bracket 37. A

horizontal rod, designated 52, is located -at the forward end of theplate 46 and has one end extended through an opening in the verticalflanged portion ofthe bar and terminally extended therebeyond, andy theopposite. end 'of the rod 52 extends through a sleeve formed on theforwardvend ofthe f plate 46 by a longitudinal depression in the plate,the terminal of the mentioned end of the rod 52 being coiled'V andfitted yin a circular recess formed in .the-upper, side of the plate 46,the said circular recess being disposedxin concentric relation with theopening which receives the` upper end of the pin 50...An operating rod53 is slidably extended through one of the side walls of the casing andhas the inner end thereof connected to theelement 44, and the oppositeend located exteriorly of the incubator and provided with a manipulatinghead 54. When vthe temperature in the intermediate compartment exceeds apredetermined degree, the thermostats 40 and 41 will expand andv Causethe rod 42 and the. element 44 to besmoved v,upwardly and effectengagement between the lower wall of VTthe channel 45 and the lower. endof thel pin 50, and coni tinued upward movement of. the element 44willlrock the forward end of the element 46 upwardly, andcause the rod52 to be moved upwardly andzeffect closing of the dampers 34,. therebycutting yoif. communication between',` the heating compartment 2 and theintermediateicompartment 3. When the rod 53.*is Amoved inwardly theenlarged end of thel element 44 will be brought nearer to the highestpointfon the curved surface of the rod'42 .and the lower wall of thechannel 45 willbe brought nearer to the head of the pin 50, therebyadmitting of the dampers being closed upon less degree of expansion 'ofthe-thermostats 40 and 41, than it takes to operate the dampers when therestricted endof the element 44'is presented to the highest' curvedpoint on the rod'42. It will, therefore, be seen that the element 44will :serve as a regulator to effect closing of the damper at anydesired temperature. The lower end of the vertical rod 51Va carries asection 51", which has adjustable connection with the rod 5la by meansof an adjusting nut 51e. The section 51b yhas connection with the innerend of a horizontally disposed lever v55, the said 'lever being pivotedto a bracketf56 mounted on the lower wall of the intermediate or traycompartment 3, at avpoint-in rear of the openings 116. The forward endofthe lever 56 has connection with a rod 57, which extends at right anglesto the lever and has secured to the opposite ends a'pair of dampers 58,which overlie the Ai openings 16 in the lowerwall of the intermediatecompartment. When the thermostats 40l and 4l are expanded to effectmovement of the'dampers 34 to closed position, the vertical arm 5la willbe pulled upwardly l Si and effect. the lowering .of the forward end anopening 60 formed in the adjacent wally of the lower compartment 4. The.upper end of the flue 59 is closed by a. wall 61,1 which has an opening62 therein. A tubular shaped support 63 is secured to the. wall 61 andhas its upper end provided with an offset pair of spaced arms 64. Alever 65 is pivoted between the arms 64 and has one end connected to theupper end of a vertical stem 66 carried by a damper 67 which overliesthe opening 60 in the wallL 61. When the lever 65 is moved inonedirection, the .damper 67" will close the opening 60, so as to prevententrancey of air into the flue 59. A weight 68 is adjustable on the freeend ofthe lever 65, for the purpose of regulating the amount of forcefor rocking the lever 65. A rod 69 is operable through the tubularsupport 63 and-has its upper end connected to the lever 65, at a pointinI rear of the fulcrumthereof, and the lower fend of the rod 69 extendsinto the flue 59 and has connection with the ou ter end of ahorizontally disposed rod 70, which extends through an elongated slotformed-in theadjacent wall of the intermediate ycompartment 3 and hasits inner'end extended through the bifurcated endof an arm 72 carried bythe adjacent arm 39 of the bracket 38. The inner terminal of the rod 70.is bent downwardly, as shown atA 71, and overlies that end of the bar42which rests upon the uppermost wafer of the thermostat 40. When thethermostats 40 and 41 raise the rod-42, thev rod will engage the bentterminal 71 of the rod 70 and raise the inner end' of the rod 70 upward,causing the outer end to pull the rod 69 downwardly and cause' that endof the rod 55 which has connectionwith the stem 66 of the damper 67 tobe'raised upwardly, so as to raise the damper 67 above the opening 60and admit of entrance of air into the flue 59 and thence through theopening 60 to the lower compartment 5.

In Fig." 1` of the drawings a brooder, des-y ignated as an entirety bythe numeral 73, is shown associated with t-he incubator and located atthe side opposite the one having the' flue 59. The supporting bracketsare located on Vthe opposite sides of the brooder 73 i for supportingthe brooder and each consists of a V-shaped element 74, lwhich hasthefree ends ofk its sides connected with the incubator by means ofsuitable plates 75. The

' apex of the V-s'haped' bracket 74 has connecaround theforward side 4ofthe brooder andl the opening in the secured thereto by means of a setscrew fastening element 7 7.' The brooden 7 3 has that Wall adjacent theincubator provided with an opening that registers with an openingl 78iny the incubator wall so as to communicate the interior of the broodel`with the intermediate or egg compartment 3 of the incubator. `Anair iiue7 8 is provided for the brooder and the entrance of air into the broodertherefrom s controlled by a suitable -valve (not shown). Y.

f Located Within the intermediate or egg compartment 3 is a thermometer79. This thermometer 79, as shown in Fig. 1, is disposed directlyopposite the windows in the front wall ofthe intermediate or eggcompartment 3 and the said thermometer is, as shown in Fig. 9, carriedby a laterally eX- tending bracket`80, which has its outer end providedwith a sleeve 81. This sleeve 81 receives the upper end of the outerslidable member of a vertically disposed telescoping support 82, thesaid sleeve 81 -being secured to the` support by means of afastening'ele'-y ment 83, which extends through the sleeve and engagesthe adjacent end of the support. The lower end of the inner member ofthe support'is bent laterally to provide a supporting foot 84, whichrests upon the lower wall of the intermediate or egg compartment 3 .andis secured thereto by means of. fastening elements 85. The outerslidable member of the support is adapted to be held in adjustableposition by vmeans of a `set screw 86 that is adjustable through theouter` member 'and through the inner member, yas

shown in Fig. 9 vof the drawings.Y The eX-.

tended terminal of the forward end of the rod 52 engages beneath a bowedspring 87` and extends over the bill of a hook 88, which hook dependsfrom the upperV intermediate compartment 3. The spring 87 exerts adownward force on the adjacent end of the rod 52 and an upward forcelonthe forward ends of the dampers, so as to cause the rod 52 to engage thelower wall of flange 35, and spaced. from the upper wall of the saidopening.

wall of the This is advantageous in that when the dam-` pers are inclosed position any further expansion of the thermostat will result inthe movement ofthe forward end of the rod 52 against the tension of thespring 87, which spring will give under the upward movement. of the rodand thereby prevent injury being done to the rod 52. The hook 88 engagesthe adjacent terminal of the rod `52 when the dampers are moveddownwardly, and limits f the `downward movement of the dampers.

It is evident that various changes may be resortedto in theconstruction, form and arrangement of the several parts withoutdeparting from the spirit andscope .of the invention; hence I do notlimit myself strictly YHaving thus 'described my what I claim asnewr,is:. f .I

1. Anincubator including 'a casing, having a pair of spaced heatingcompart-' ments, andan intermediate egg .compartment, a damper for eachheat compartment for controlling the entrance of heat into the'eggcompartment, y and adjustable means connecting vthe dampers together,whereby one damper can be arranged to be closedV before the other, and avthermostat 'operatively connected to said means. f

2. In an incubator. having an egg compartment therein anda heatingcompartment arranged above the egg compartment, a pair of dampers'forcontrolling the-flow of heat into vthe compartment, said dampers beinghingedly supported at their rear ends, a strip connecting the forwardends of the dampers, an operating rod engaging said strips, meansengaging saidrod for limitf ing thel downward. movement of said dampers,and a thermostat varranged in'said egg compartment yand operativelyconnected to said operatingfrod.

3. In an'incubatona casing,

`for.1imiting the downwardmovement of a partition arranged 1n saidcasing and dlvidlng the said operating rod, a pair of thermostatsarranged in,said egg receiving compartment, an arcuate bar supported byysaid;

thermostats, anda pinV carried by said. arcuate member and pivotallysecuredto said ivoted plate, as Land for'the purpose speci ed.y

4. In an incubator including a casinga partition arranged in the casingand formingV an egg receiving compartment and a heating compartment,said r,partition having a pair of spaced openings, a damper for eachopening hingedlysecured adjacentsits rear end to said casing, and astrip connecting the `forward ends of said dampers,

, means for limiting the downward movement ofsaid dampers, a platepivotally supported adjacent its rear end, an operating rod carried bythe forward endI of said-plate and connected to said strip, a pairof'thermostats, positioned in said egg receiving compartments, anarcuatevbar supported by said' p thermostats, a pin supported by saidarcuate bar .and pivotally secured to said pivoted-vV plate intermediateythe operating rodizand;

interposed between said pin and said vrarcuate bar, said wedge beingmanually operated and adapted to vary the distance between the arcuatemember and said pin, as and for the purpose specified.

5. In an incubator of the above character includingaheating compartment,and an egg compartment, a damoerffor' controlling communication betweensaid compartments, a thermostat located within the egg compartment, amember disposed above the thermostat and arranged to swing in a verticalplane, a connection between the vertically movable member and thedamper, a pin depending from the vertically movable member, ahorizontally slidable and vertically movable element disposed above thethermostat and having a channel therein for receivingthe lower end ofthe pin, the said element being adapted from the eX- pansion of thethermostat to be moved upwardly and cause upward movement of thevertically movable member so as to efe'ct closing of the damper.

InI testimony whereof I aIiX my signa-y ture in presence of twowitnesses.

RUDOLPH POKOY.

Witnesses:

PAUL DOHNE, J. H. GRANT.

Copies of this patent may be obtained for ve cents each, byraddressingthe "Commissioner of Patents,

'v Washington,D.C.

